is a high-performance precompression and preprocessor tool designed specifically for game repacking. While traditional compression tools like 7-Zip or WinRAR are great at general archiving, they are not designed to optimize the proprietary file structures found in modern video games (e.g., Oodle, Zstd, proprietary archive formats).
XTool operates in several stages, acting as a "pre-compressor."
: Standardizes the detection of Zlib deflate streams to ensure consistency across different repacks. Skip Verification xtool library by razor12911 repack
: Achieves very small file sizes for large games.
If the installer finishes but xtool.exe remains active in the Task Manager, it can usually be manually ended without issue. Skip Verification : Achieves very small file sizes
The xTool library implements a highly optimized (similar to xdelta , but faster and more memory-efficient). Here’s the trick: Scene releases often update games from v1.0 to v1.1. Instead of storing the entire updated game, repackers store only the delta – the bytes that changed.
Put that processed file through external tools like FreeArc or 7-Zip. Restores the data to its original standard game state. Command syntax: xtool decode input_file -o output_file 📂 Primary Features & Supported Codecs Here’s the trick: Scene releases often update games
: The library comes with natively supported decoders for common industry algorithms, including Zlib , Deflate , and Epic Games' Oodle .
This replaces compressed streams with uncompressed data, making them more "compressible" for tools like 7-Zip or FreeArc.
If you have a specific goal in mind for using the xtool library, providing more context could help in offering more targeted advice or information.